From: Cong Wang <cwang@xxxxxxxxxxxxxxxx> Date: Tue, 13 Jan 2015 11:25:45 -0800 > On Tue, Jan 13, 2015 at 6:10 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote: >> When IPV4 support is disabled, we cannot call arp_send from >> the bridge code, which would result in a kernel link error: >> >> net/built-in.o: In function `br_handle_frame_finish': >> :(.text+0x59914): undefined reference to `arp_send' >> :(.text+0x59a50): undefined reference to `arp_tbl' >> >> This makes the newly added proxy ARP support in the bridge >> code depend on the CONFIG_INET symbol and lets the compiler >> optimize the code out to avoid the link error. >> > > Not sure how much sense to make CONFIG_BRIDGE depend > on CONFIG_INET, at least CONFIG_BONDING does. It depends upon whether we want to provide and consider as a valid configuration bridging without INET. Probably we do.
